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The famous athena 125cc kit from ATHENA for Yamaha YZ 125 motorcycles from 2001 to 2004.
Complete kit ATHENA of very high quality high performance!
High quality nicasil treated aluminum cylinder, made in italy.
VERTEX piston, high compression graphite with pre-ground steel segmentation!
Seal ATHENA (one of the best seal manufacturer in the world), we are clearly on the very high end.
Original quality product if not more, the compression as well as the reduction of friction, of the temperature in the chamber will offer more performance to your machine!
This is what makes it a very robust and efficient kit. Delivered complete as in the photo with cylinder, piston, seal, but also relief valves.
Attention, for the installation of this kit, on the models of 1997-1998, you must change the original exhaust with a model of 1999-2003 and for the models 1997-1999 it is necessary to buy 2 torsion springs (valve ) original Yamaha year from 2000-2003.
As an option we offer you a stage 1 preparation, this preparation is a modification of the channels and the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the piston and the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation!
Mounts on Off-road (mx) Yamaha YZ 125 - 2001/2004
Specific References
Reference: P400485100038
A 105cc ø53mm Big Bore ATHENA kit, high performance and high quality for your Yamaha YZ 85 - 2002/2018 motocross bike
Reference: P400485100042
Complete kit cylinder piston cylinder head ... ATHENA high performance and high quality in 293cc ø72mm Big Bore for Yamaha YZ 250 LC from 2003 to 2018.
Reference: CI.03.270.2D
Cylinder only for BETA 270 2T with GILARDONI 352 C1 engine.
Reference: P400485100029
The famous BIG BORE 144cc from ATHENA for Yamaha YZ 125cc motorcycles from 1997 to 2004.
Reference: P400485100039
A 100% complete competition pack for YAMAHA YZ 85cc motocross engine! Special long stroke in 102cc Ø53mm, high compression cylinder head with increased chamber volume. In short, a real concentrate of performance!
Reference: CI.03.270.1D
Cylinder without piston, without cylinder head for BETA 270 2T with GILARDONI 269 A engine.
Reference: CI.03.250.1D
Cylinder only for BETA 250 2T with GILARDONI 352 engine.
Reference: P400485100017
The famous athena 125cc kit from ATHENA for Yamaha YZ 125 motorcycles from 2005 to 2018.
Reference: P400485100030
The famous BIG BORE 144cc from ATHENA for Yamaha YZ 125 - 2005/2018 motorcycles! Monstrous!
Reference: CI.48.3
Complete kit without cylinder head for MONTESA 250 2T TRIAL liquid cooling ... with GILARDONI 300A engine
Reference: CI.48.2
Complete kit without cylinder head for MONTESA 250 2T TRIAL liquid cooling ... with GILARDONI 300 engine
Reference: CI.03.270.1
Complete kit without cylinder head for BETA 270 2T with GILARDONI 269 A engine.
Reference: P400010100001
Complete kit without cylinder head for MONTESA 250 2T TRIAL liquid cooled... with GILARDONI 300A engine
Reference: P400155100001
The famous athena 125cc kit from ATHENA for Gas Gas EC 125 cross motorcycles from 2013 to 2015 2T
Reference: CI.48.1
Complete kit without cylinder head for MONTESA 250 2T TRIAL like 315 COTA, R2 ... with GILARDONI 383/1 engine
Reference: P400250100006
The best to replace the high engine of his KX 65! A high performance and very robust 65 kit.
The famous athena 125cc kit from ATHENA for Yamaha YZ 125 motorcycles from 2001 to 2004.
